[rabz]

Not who you were asking, but it's pretty much steeping coarse coffee grounds and cold water in a cup overnight, then filter out the grounds, sort of like cold sun tea. In New Orleans toss in some chicory.

I use the Toddy, which steeps 12oz grounds in 56 fl oz of water, drained through a fuzzy fabric filtering puck; the extract can be refrigerated and diluted with hot water or cold milk.

There are smaller CoffeeSocks (cloth filters) if you don't want to have a carafe of extract in your fridge for two weeks.

[rainbowzootsuit]

A knee-high nylon stocking works very well for this method, is very inexpensive and reusable.

[jvandonsel]

I tried this but the coffee kept filling up my shoe.